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Acer Aspire 4920 4920G User Manual

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    							Chapter 371
14.Disconnect the speaker cable from the mainboard.
15.Detach the launch board cable from the mainboard.
16.Detach the touchpad cable from the mainboard.
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    							72Chapter 3
17.Remove the three screws (A) on the upper case.
18.Turn the system over and remove the eleven screws (C) on the lower case. 
19.Gently detach the upper case from the lower case. 
StepSize (Quantity)ColorTo r q u e
1~3 M2 x L4 (3) Black 1.6 kgf-cm
StepSize (Quantity)ColorTo r q u e
1~11 M2 x L6 (11) Black 3.0 kgf-cm
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    							Chapter 373
Removing the Speaker Modules
1.See “Removing the Battery Pack” on page 53.
2.See “Removing the SD Dummy Card” on page 54.
3.See “Removing the Express Dummy Card” on page 54.
4.See “Removing the Lower Cover” on page 55.
5.See “Removing the DIMM” on page 56.
6.See “Removing the WLAN Board Module” on page 57.
7.See “Removing the Hard Disk Drive Module” on page 58.
8.See “Removing the Optical Drive Module” on page 59.
9.See “Removing the CPU Heatsink Module” on page 62.
10.See “Removing the CPU” on page 63.
11 .See “Removing the Keyboard” on page 64.
12.See “Removing the Middle Cover” on page 65.
13.See “Removing the LCD Module” on page 68.
14.See “Separating the Upper Case from the Lower Case” on page 70.
15.Remove the four screws on the speaker modules. 
16.Remove the speakers. 
StepSize (Quantity)ColorTo r q u e
1~4 N/A Silver 1.6 kgf-cm
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    							74Chapter 3
Removing the Launch Board
1.See “Removing the Battery Pack” on page 53.
2.See “Removing the SD Dummy Card” on page 54.
3.See “Removing the Express Dummy Card” on page 54.
4.See “Removing the Lower Cover” on page 55.
5.See “Removing the DIMM” on page 56.
6.See “Removing the WLAN Board Module” on page 57.
7.See “Removing the Hard Disk Drive Module” on page 58.
8.See “Removing the Optical Drive Module” on page 59.
9.See “Removing the CPU Heatsink Module” on page 62.
10.See “Removing the CPU” on page 63.
11 .See “Removing the Keyboard” on page 64.
12.See “Removing the Middle Cover” on page 65.
13.See “Removing the LCD Module” on page 68.
14.See “Separating the Upper Case from the Lower Case” on page 70.
15.Remove the two screws (A) from the launch board bracket.
16.Remove the bracket.
StepSize (Quantity)ColorTo r q u e
1~2 M2 x L4 (2) Black 1.6 kgf-cm
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    							Chapter 375
17.Remove the three screws (A) from the launch board.
18.Remove the launch board.
Removing the Touchpad Board Module
1.See “Removing the Battery Pack” on page 53.
2.See “Removing the SD Dummy Card” on page 54.
3.See “Removing the Express Dummy Card” on page 54.
4.See “Removing the Lower Cover” on page 55.
5.See “Removing the DIMM” on page 56.
6.See “Removing the WLAN Board Module” on page 57.
7.See “Removing the Hard Disk Drive Module” on page 58.
8.See “Removing the Optical Drive Module” on page 59.
9.See “Removing the CPU Heatsink Module” on page 62.
10.See “Removing the CPU” on page 63.
11 .See “Removing the Keyboard” on page 64.
12.See “Removing the Middle Cover” on page 65.
13.See “Removing the LCD Module” on page 68.
14.See “Separating the Upper Case from the Lower Case” on page 70.
StepSize (Quantity)ColorTo r q u e
1~3 M2 x L4 (3) Black 1.6 kgf-cm
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    							76Chapter 3
15.Remove the two screws (A) on the touchpad bracket. 
16.Remove the touchpad bracket from the upper case. 
17.Carefully insert the flat screwdriver under the side of the touchpad board and gently pry up the board.
StepSize (Quantity)ColorTo r q u e
1~2 M2 x L4 (2) Black 1.6 kgf-cm
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    							Chapter 377
18.Continue prying the board until it releases from the upper case, then remove the board.  
Removing the Bluetooth Board
1.See “Removing the Battery Pack” on page 53.
2.See “Removing the SD Dummy Card” on page 54.
3.See “Removing the Express Dummy Card” on page 54.
4.See “Removing the Lower Cover” on page 55.
5.See “Removing the DIMM” on page 56.
6.See “Removing the WLAN Board Module” on page 57.
7.See “Removing the Hard Disk Drive Module” on page 58.
8.See “Removing the Optical Drive Module” on page 59.
9.See “Removing the CPU Heatsink Module” on page 62.
10.See “Removing the CPU” on page 63.
11 .See “Removing the Keyboard” on page 64.
12.See “Removing the Middle Cover” on page 65.
13.See “Removing the LCD Module” on page 68.
14.See “Separating the Upper Case from the Lower Case” on page 70.
15.Disconnect the Bluetooth cable from the mainboard.
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    							78Chapter 3
16.Carefully detach the Bluetooth board from the lower case.
Removing the USB board
1.See “Removing the Battery Pack” on page 53.
2.See “Removing the SD Dummy Card” on page 54.
3.See “Removing the Express Dummy Card” on page 54.
4.See “Removing the Lower Cover” on page 55.
5.See “Removing the DIMM” on page 56.
6.See “Removing the WLAN Board Module” on page 57.
7.See “Removing the Hard Disk Drive Module” on page 58.
8.See “Removing the Optical Drive Module” on page 59.
9.See “Removing the CPU Heatsink Module” on page 62.
10.See “Removing the CPU” on page 63.
11 .See “Removing the Keyboard” on page 64.
12.See “Removing the Middle Cover” on page 65.
13.See “Removing the LCD Module” on page 68.
14.See “Separating the Upper Case from the Lower Case” on page 70.
15.Disconnect the USB FFC (flat flexible cable) from the mainboard.
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    							Chapter 379
16.Pull out the AC input cable and move away from the USB board.
17.Remove the screw (A) on the USB board. 
18.Remove the USB board.
Removing the Mainboard
1.See “Removing the Battery Pack” on page 53.
2.See “Removing the SD Dummy Card” on page 54.
3.See “Removing the Express Dummy Card” on page 54.
4.See “Removing the Lower Cover” on page 55.
5.See “Removing the DIMM” on page 56.
6.See “Removing the WLAN Board Module” on page 57.
StepSize (Quantity)ColorTo r q u e
1~2 M2 x L4 (2) Black 1.6 kgf-cm
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    							80Chapter 3
7.See “Removing the Hard Disk Drive Module” on page 58.
8.See “Removing the Optical Drive Module” on page 59.
9.See “Removing the CPU Heatsink Module” on page 62.
10.See “Removing the CPU” on page 63.
11 .See “Removing the Keyboard” on page 64.
12.See “Removing the Middle Cover” on page 65.
13.See “Removing the LCD Module” on page 68.
14.See “Separating the Upper Case from the Lower Case” on page 70.
15.See “Removing the Bluetooth Board” on page 77.
16.See “Removing the USB board” on page 78.
17.Detach the media board cable from the lower case.
18.Detach the power board cable from the lower case.
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